The driver side window has a chalky film on the outside. on 2009 Volkswagen Passat

The chalky film covers the entire window, making it difficult to see out of. It disappears after a car wash, only to return after several days. Cycling the window up and down does not wipe off the film. Wiping with the fingers only smudges the film. The film has a chalky feel. Leaky motor inside the door/

Asked by for the 2009 Volkswagen Passat